How do you dismantle a nuclear submarine?
bbc.com
bbc.com
The craziest sub I've stumbled upon is probably the 1950's-era Seawolf[2]. Instead of lead-bismuth, its original coolant was liquid sodium. Sodium, a metal that burns on contact with water, was used as the coolant for a submerged nuclear reactor! Of course, that wasn't the only "interesting" aspect of the Seawolf's design:
> The phrase "Blue Haze" was often associated with the boat, which was Cherenkov radiation, visible on a dark night, in the sea water surrounding the hull...
Shake-out problems and a desire to standardize reactors caused the navy to switch away from the design, but it's still amazing that it was built and tested.
Radioactive tumbleweeds. There's two words used together that I never anticipated.
The Sinking of the USS Gitarro
http://catless.ncl.ac.uk/Risks/16.52.html#subj2.1
I Swear I'm Not Making This Up.